Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
ta123
Group Title
Need help on the following question,
Iodine123, used in thyroid therapy, has a halflife of 13.27 hours. How many halflives are required for a 160 mg sample of iodine123 to decay to 5.0 mg?
A) 1.0
B) 32
C) 5.0
D) 0.031
 2 years ago
 2 years ago
ta123 Group Title
Need help on the following question, Iodine123, used in thyroid therapy, has a halflife of 13.27 hours. How many halflives are required for a 160 mg sample of iodine123 to decay to 5.0 mg? A) 1.0 B) 32 C) 5.0 D) 0.031
 2 years ago
 2 years ago

This Question is Open

ammubhave Group TitleBest ResponseYou've already chosen the best response.0
t = 0 => 160 mg t = 13.27 hrs => 80 mg t = 13.27 * 2 hrs => 40 mg t = 13.27 * 3 hrs => 20 mg t = 13.27 * 4 hrs => 10 mg t = 13.27 * 5 hrs => 5 mg So after 66.35 hrs, i.e. after 5 halflives, there will be only 5 mg left.
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.